What the Sleepers Built

Sleep Latency

She had taken a job at the far edge of the country, where the road drowned twice a day.

The causeway began where the land lost its nerve — tarmac one moment, then a low ribbon of stone laid across the mere, no rail, no shoulder, only reflective posts every twenty metres to say here, the road is still here. Wren counted them as the headlights found them. Eleven. Twelve. The tide was coming in from the right, a flat grey sheet sliding over the mud with no hurry to it at all, and by the time she reached the thirteenth post the water had already taken the foot of the twelfth behind her. In the mirror the reflector winked once, low, and went under.

Thirteen. Fourteen. She kept her speed even and her hands at ten and two, the way she did everything now, and told herself the tide table taped to the dashboard was law and she had read it correctly. High water 18:52. She had crossed at 18:31. Twenty-one minutes was a wide margin. It did not feel wide. It felt like the mere was reading the same table and disagreeing.

The clinic stood up out of the dusk ahead like something that had washed there — a derelict Victorian spa, all wet-dark stone and blind windows, with a flat 1960s wing grafted onto its flank like a splint on a broken thing. One lit door. She drove the last hundred metres with the water whispering against the stones on both sides, parked nose-out from old habit, and sat for a moment in the ticking dark.

You'd have hated this place, Joss, she thought. No phone signal and nowhere to swim.

She got out before the thought could finish becoming the next one.

The lit door opened before she reached it. A woman stood in the gap with a lanyard and a cardigan and a face that had clearly been awake for many more years than this single night.

"Halloran." Not a question. "You crossed it, then. Good. Some don't, first night. Sit in the car park on the mainland till morning and call it weather." She stepped back to let Wren in. "Margo Dell. Night charge. Wipe your feet — the mud gets everywhere, and Sully's mopped."

The corridor smelled of floor cleaner and old radiators and, under that, something mineral and cold that Wren took for the building's wet bones. Margo walked fast for a woman of fifty-eight, talking over her shoulder in a dry, flat register that did not rise or fall for anything.

"Four guests tonight. We say guests, not patients — Dr. Sable prefers it, and you'll find you do too, after a week. Four beds occupied, all in the synchrony cohort, all on the compound, all on the caps." She pushed through a set of double doors into a low room lit the blue of an aquarium. "This is yours till six. Welcome to the heart of it."

The far wall was glass, and behind the glass were screens.

Wren had worked three sleep labs in twelve years and she had never seen a wall like it. Four columns, one per guest, each running the live channels — the ragged green scribble of the EEG, the slow tide of respiration, the heart's small insistence, and beneath them all the hypnogram, that staircase graph that turns a night's sleep into a shape you can hold in one glance. Awake at the top. Then the descent: N1, the threshold. N2, with its spindles. N3, the deep slow water. And REM, where the eyes run under the lids and the body lies paralysed so the dreamer cannot rise and act its dreams. Atonia, they called that paralysis. The mercy that keeps you in the bed.

Four staircases, climbing and falling in the dark.

"Names," Margo said, and tapped the glass column by column without quite touching it. "Reyes, Tomas — fifty-four, ex-firefighter, the big one in three. Anand, Priya — twenty-eight, new mother, room four, and if her trace spikes you go to her quietly, no overhead light. Frost, Gideon — seventy-one, room five, gentle as milk, here for his late wife in a manner of speaking. And Lund, Bex — nineteen, room six, night terrors, our artist. You'll meet Bex properly around four. Bex meets everyone around four."

"What happens at four?"

Margo's eyes moved over her, unhurried. "You'll see. Bex wakes. Loud. Don't restrain, don't argue, lower the lights, let the terror finish — it always finishes — and Bex goes back down like nothing happened and remembers none of it by breakfast. Standing orders." She set a clipboard on the desk. "Rounds every thirty. Initial the log. The cap readings I take myself — you don't touch the entrainment, that's Sully's clock and Dr. Holt's protocol and well above both our pay. You watch, you note, you keep them safe in the small ways. That's the job."

"And if something's wrong?"

"Define wrong." Margo almost smiled. "If a trace flatlines you run. Short of that, you write it down and you tell me, and we'll see whether it's wrong or whether it's just Hollowmere." She pulled on her coat — a sensible navy anorak, Wren noted, without knowing yet that she would note coats — and paused at the door. "There's tea in the side room. The kettle screams; that's the worst thing that'll happen to you in there. I'm on the unit, not far. Don't cross the causeway again till it's down. Tide's not back off the road till near seven."

Then she was gone, and Wren was alone with four sleeping strangers and the long blue hush.

She did the first round. Three was the firefighter, broad, grey-stubbled, lying with his fists loosely closed as if holding two ropes. Four was the young mother, curled small, one hand thrown out across the empty half of the bed toward a phone that wasn't there. Five was the widower, on his back, lips moving very slightly, a man humming in his sleep with no breath behind it. Six was the girl — Bex — turned to the wall, a sketchbook fallen half off the blanket, the pages chalky with grey pencil. Wren eased it back onto the bed without looking. Standing orders said nothing about the sketchbook, but it seemed a thing that ought to be kept close to its owner.

Back at the wall she initialled the log and began to count, because counting was what she did to make the night agree to pass. Ceiling tiles: forty across the false ceiling, water-stained at the seams. Her own breaths: she let ten go by. The staircases climbed and fell.

I don't dream anymore, she would have told anyone who asked — and someone always asked, in this work, sooner or later. Fourteen years now. Since the room with the soft machines and the form she signed with a borrowed pen and the long quiet afterward that had never once, not one night, opened into a dream. She had wondered, signing it, whether Joss was dreaming in there. Forty-one days under, and no one could tell her if anything ran behind his eyes. The not-knowing had taken up residence where the dreams used to be. She had thought, taking a job among the deepest sleepers in the country, that she might one day stand at a wall like this and see.

So she watched. That was the whole of it, that first hour: she watched the way a starved woman watches a window.

It was somewhere in the second hour that she saw the first thing she could not write down.

Three and five — Reyes and Frost, the firefighter and the widower, four rooms apart and unacquainted — were breathing together.

Not near to together. Together. The two respiration tides on the screen rose on the same line and fell on the same line, crest for crest, as though one set of lungs lay behind both chests. She watched for a full minute, then two, waiting for the drift that always comes, the small human imprecision that pulls two rhythms apart. It did not come. If anything the match deepened, the curves laying themselves over each other until the second was only the first, traced again.

She looked at the hypnograms.

The staircases for three and five had stopped being two staircases. They were one shape, drawn twice. Reyes had gone down into REM at — she checked the log — 23:50, and Frost had followed at 23:51, and from that minute on every turn the one trace took, the other took, the same descent, the same small awakening, the same plunge, braided so close that if you crossed your eyes they became a single thick line going down into the dark together. Two men. One dream's worth of architecture.

That's not possible, she thought, and then, more honestly: That's not supposed to be possible.

She wrote it down anyway. 0117 — Pts 3 & 5 resp. and sleep-stage traces in apparent lockstep. ?Artifact ?shared timing input. The pen felt foolish in her hand. Sleep was the most private country there was. You went into it alone; that was the one thing everyone agreed on. Nobody dreamed in formation.

She would go and tell Margo. She stood — and the kettle in the side room had not screamed, no one had made tea — and stopped, because the smell had reached her.

Lavender. And under it, wet plaster, that mineral cold she had mistaken at the door for the building. Together they made something specific and wrong: a sickroom, a flower pressed in a damp book, a house left to the weather. It was not coming from the unit. It was coming from the observation room across the corridor, a small dark cell with its own pane of glass onto the beds, used for the daytime team's recordings. She had glanced into it on her round. Empty. Dark.

It was empty now. She put her head in and the smell was thick there, lavender and rain, strong as a hand laid over her face. The observation desk, the dead monitor, a chair. And on the back of the door, on a hook she would have sworn was bare an hour ago, a coat.

A woman's coat. Green wool, good wool, the deep moss green of something cared for and old, with horn buttons and a collar turned up as though against weather it had walked in from. It hung the way a coat hangs that someone has just shrugged off — still holding the shape of shoulders.

Wren stood in the doorway and counted, because her chest had done something and counting was the only thing she trusted to undo it. One. Two. Three.

Four guests. She had the roster in her hand. Reyes, Anand, Frost, Lund. Three men's coats and a girl's parka, all logged at intake, all in the property cupboard by the door — she had passed it, seen the labelled hooks. This was no one's. It matched no name. Staff hung their coats in the staff room and Margo's navy anorak had gone out into the night on Margo's back. The green coat belonged to nobody in the building, and it smelled of lavender and wet plaster, and it was warm-looking, and it was here.

She did not touch it. She was proud, later, that she had not touched it.

She backed out, pulled the door to, and went to find Margo to say there is a coat, which was an absurd sentence, which was the most frightening sentence she had assembled in fourteen years — and that was when room six began to scream.

It was not a child's scream though the voice was young. It came up out of Bex all at once, a pure rising note with words riding the top of it, and Wren was through the door and at the bedside in the time it took the sound to reach its height. The girl was bolt upright, eyes open and seeing nothing in the room, both hands flat on the blanket as if pressing it down over something, and the words came out of her clear and carrying and certain:

"She's in the long house — she's in the long house —"

"Bex. Bex, you're at Hollowmere, you're awake, the light's coming up —" Lights down, not up; standing orders; Wren found the dimmer by touch and brought the glare down to a low amber while she talked, low and even, not touching her. "Nobody's here but us. You're safe. Breathe with me. In —"

And across the corridor, faint, threaded under the girl's panic, another voice spoke the same words.

Gideon Frost, room five, the gentle widower, lay exactly as she had left him, on his back, eyes shut, deep in the braided REM he shared with a man four doors down — and his lips moved, and out of him came the murmur, unhurried, almost fond: "She's in the long house." A pause. The small smile of a sleeper. "She's been in the long house all this while."

He had not woken. His hypnogram did not so much as flicker. He said it the way you'd say a thing you'd known for years.

Bex's eyes found Wren's. For one moment they were entirely present, entirely nineteen, wet and frightened and looking right at her — and then the terror let go all at once the way Margo had promised, the body going soft, the girl folding back down toward the pillow. Wren caught her shoulders, eased her flat. The sketchbook had fallen again. On the open page was a long room drawn in grey: many doors, a low ceiling, and at the far end a smaller door, darker, pressed shut.

"There," Wren said, "there now, you're going down, it's only sleep —"

Bex's hand came up and closed on Wren's wrist, not hard. Her eyes were already shut. Her voice came from somewhere under the surface, slow, almost kind, the voice of someone telling you a thing for your own good.

"You weren't in it yet," she said.

And let go, and was asleep.

Wren stood holding the rail of the bed until her hands stopped wanting to shake. She filled in the log. She did not, when she wrote 0359 — Pt 6 night terror per standing orders, settled, no recall expected, write the rest of it, because she could not make the rest of it into clinic words. She did the remaining rounds. The traces for three and five had unbraided sometime in the chaos and were two ordinary staircases again, climbing toward morning, two strangers sleeping apart. The smell was thinning in the corridor. By five it was only floor cleaner and radiators.

She did not go back into the observation room for a long time.

When at last the windows went from black to the slow lead colour that the north calls dawn, she made herself cross to it. The sea had pulled off the land in the night; out the corridor window the causeway lay bare and shining, post by post, all the way to the mainland, the road given back. Twenty-one minutes. A wide margin.

The observation room was grey with the new light. The desk, the dead monitor, the chair. The hook on the back of the door.

Bare.

No coat. No green wool, no horn buttons, no shape of shoulders. Only the hook, and a faint cold that might have been the building, and — she leaned in, she made herself be sure — the last thread of lavender, almost gone, the way a smell goes when someone has only just left a room.

You imagined it, she told herself, in Margo's flat dry voice, the only voice she could borrow that sounded unafraid. Long night. New place. You imagined the coat.

She stood in the doorway with the dawn coming up off the drowned road behind her and she counted, one, two, three, and she knew that she had not.

Hypnogram

"Sleep is the only therapy that works while you're not paying attention," Dr. Adrian Holt said, and clicked to the next slide.

The seminar room had no clock and no window, which Wren took, on her second day, as a kind of confession. A place that synchronized people for a living did not want to remind them of the hour. The screen filled with a graph she could have drawn in her sleep, if she still did that — a hypnogram, the night's staircase, wake at the top and the deep stages dropping away beneath it like floors in a flooded building. Holt stood beside it the way other men stand beside their children.

"You've read trace before," he said. It wasn't a question. He had her file; he'd remarked, approvingly, on the four years of overnight polysomnography, the neuro ICU before that. He had not remarked on why she'd left the ICU, and she'd been grateful, and then suspicious of her gratitude.

"I've scored it," she said. "I've never made it."

"That's the difference here." He smiled. He was forty-one and looked younger when he smiled, which he did a great deal, and she would learn that this was not performance. Holt believed everything he said. That was the thing about him she could not file. "Anywhere else, you measure sleep. You watch it happen to a person and you write it down. Here we conduct it."

He walked her through it standing up, too restless to sit, and she counted his circuits of the table to keep her own attention from drifting — one, two, three laps while he talked. The compound first: a proprietary blend, GABAergic, "gentle," dosed identically across the cohort at the same minute every night. Then the rooms. Eight guest rooms on the ward, each the precise twin of the others — same bed against the same wall, same lamp, same grey blanket folded to the same hand's width, same print of the same dull harbour over each headboard. Same temperature. Same dark at the same second. "Environmental synchrony," he said, as if naming a virtue.

"And the caps."

"The caps." Click. A photograph of the entrainment cap, a soft mesh hood threaded with electrodes, more dense than any montage she'd run. "EEG in, tACS out. Closed loop. We don't just record the slow oscillations, we nudge them. A whisper of current, timed to the down-state, riding the patient's own rhythm and — " his hands came together, fingers interleaving, " — bringing the cohort into phase. Four sleepers. One waveform."

"To what end."

"Reconsolidation." He said the word the way Gideon Frost would later say his wife's name. "Memory isn't a photograph, Wren. Every time you take it out it goes soft again, and you put it back changed. Trauma is a memory that was filed badly and won't go soft. We make it soft. We do it in deep sleep, where the brain does its own filing, and we do it together. Collective reconsolidation. Nobody reprocesses alone. The witness is the medicine."

She thought of the neuro ward. Of a memory she had taken out and put back changed so many times she no longer trusted its edges. She said nothing.

"Our outcomes — " he clicked, and the slide was all numbers, sleep latency halved, nightmare frequency in free-fall, a column of green arrows pointing the right way " — are the reason the journals stopped laughing. We had a man who hadn't slept four hours straight in nine years. Three weeks. He graduated last spring."

"Graduated."

"Discharged. Cured." He let the screen hold its green a moment. "We call it graduating. The guests like it. It's a thing you finish, not a thing that's done to you."

The door opened on the word cured, and Wren stood, the way you stand without deciding to when the room changes its weight.

Dr. Lydia Sable was sixty-four and dressed like a woman who had decided, decades ago, exactly how she would look at her own funeral and had been rehearsing since. Grey wool, a single grey pearl, hair the colour of clean ash. Nothing about her was tired, which — at this hour, in this work — was the strangest thing in the building. She crossed the room without hurry and took Wren's hand in both of hers, cool and dry.

"The night technologist." Her voice was low and smoothed of all its corners. "We're so glad you've come up to us. I do worry the nights are lonely here for new people."

"I keep good company with the monitors."

"Mm." A small sound, almost a laugh, that conceded nothing. "I think of them as our guests, you know, not patients. Patients are people something is being done to. Our guests are simply — resting. Settling." She turned the word over like a stone she'd carried a long time. "You'll find they settle beautifully."

"Dr. Sable founded Concordance," Holt said, with the particular pride of a man borrowing greatness.

"Adrian founded Concordance," Lydia said. "I only lost enough sleep to want it badly." Again the not-quite-laugh. Her eyes, pale, went over Wren's face slowly, reading it the way Wren read a trace, looking — Wren would think later — for a particular wave, and not finding it, and being satisfied that she had not. "You don't dream much, I'm told."

It was in the file. Reports cessation of dream recall, ~14 years, attributes to bereavement. The clinical sentence for the largest fact of her life.

"Not for a long time," Wren said.

"How restful," said Lydia Sable, and smiled, and the smile did not reach anywhere, and she was gone again into the corridor before Wren had decided whether she'd been complimented or chosen.

─

Holt walked her onto the ward at the hour the guests were allowed to be awake, the bright synthetic afternoon they kept between sleeps, and she met the four of them the way you meet people you will later watch unconscious — too early, too intimately, learning faces she'd come to know better with their eyes shut.

Tomas Reyes was at the window in the day room, a big man gone careful with his bulk, watching the causeway where it ran out across the mere. Fifty-four, the file said; firefighter, on leave. He had a way of standing with his weight forward, as if a floor might give.

"Tide's in," he told her, not turning. "You count it yet? Hour and ten each side of the high. We're an island twice a day." He said it like a man reciting an escape route. "I count the floors back down when I'm up there. Helps. Eleven, ten, nine." His hand moved at his side, ticking off air. "I always get back to the second floor and then it's — " He stopped. "You're the new night girl."

"Wren."

"Tomas." He looked at her then, and what was in his face was not for her; it was aimed past her at people who weren't in the room. "You'll hear me talking in there sometimes. To the crew. Don't write me up for it."

"I don't write that down," she said, and he nodded once, and went back to the water.

Priya Anand was younger, twenty-eight, hollow under the eyes in the specific way Wren recognized from the parents' rooms off the neuro ICU — the wakefulness that has nothing to do with caffeine. She was holding a phone with a dead screen, thumb moving over it from habit.

"No signal on the peninsula," Wren said gently. "There's a landline at the desk, if you need —"

"I know. I just." Priya turned the dark phone face down on her knee and then face up again. "She's eight months. My mum sends pictures. They don't come through till I'm off the island, and then there's forty of them at once and she's a different baby in every one." Her thumb moved. "I count her feeds. Used to. Six, sometimes seven. I don't know what she's on now. That's the thing about being fixed, isn't it, you do it so you can go home, but the home keeps —" She didn't finish. "When do I sleep tonight?"

"Lights at ten."

"Good," Priya said, and didn't mean it, and Wren let it lie.

Gideon Frost rose when she came near, actually rose, seventy-one and courtly, and took her hand with a small bow that belonged to another century. There was a softness all over him like a man who had set a heavy thing down.

"They'll have told you I'm the success," he said warmly. "I sleep so well now. Truly. Nine years I dreaded the dark and now I go to it like —" He hummed a few notes, a tune with the shape of a lullaby, and caught himself. "My Eleanor's. She had a song for everything." His eyes were wet and entirely content, and the combination did something cold to the back of Wren's neck that she couldn't name and so counted past — one, two — until it loosened.

"You sleep well," she said.

"Better than living," said Gideon Frost, and beamed at her as if he'd paid her a kindness.

The girl was in the corner, and the girl was drawing.

Bex Lund was nineteen and built like something that had not been fed enough during a growth it hadn't finished, all wrists and collarbone, hair in her eyes, a hard-backed sketchbook braced on her knees and a pencil going at it in fast short strokes that never lifted long. She did not look up.

"Bex doesn't always —" Holt began, low.

"I'm listening," Bex said, drawing. "Long hallway. Doors on the left, only the left. The wallpaper's that green with the pattern that's almost a face if you let it. There's a coat on a hook at the end. Wool. The good kind." The pencil stopped. She looked up at Wren through the hair, and her eyes were very old. "You'll go down it before the rest of us. That's what the new ones do."

"That's enough, Bex," Holt said, kind and final, the way you close a child's book.

But Wren had stepped closer, and Bex had let her, turning the sketchbook a few degrees so she could see. It was not a child's book. Page after page of rooms — corridors meeting corridors, a stair that turned the wrong way, a long low room at the bottom of everything drawn over and over from slightly different angles, as if Bex were walking around something she couldn't get out of. The lines were sure. An architect's certainty in a teenager's hand. And in the margin of the open page, small, almost an afterthought: a coat on a hook. Wool. She'd shaded it dark, but the way the pencil caught the page it could only have been one colour, and Wren's skin went tight from her scalp down.

Green.

"Where did you see this," Wren said.

"Same place everybody does," Bex said, and turned the page, and began again.

─

It came for her at the desk, near two in the morning, the way the worst things at Hollowmere always came — not with a sound but with a number that wouldn't sit right.

She had the four traces up across the monitor, the live cohort, scoring them as the night ran. Tomas in stage three. Gideon in three. Priya climbing. Bex down deep. Ordinary. Then she did the thing nobody had told her to do, the thing she did because she'd scored ten thousand nights and her hands got bored — she laid the four hypnograms over one another, the night's staircases stacked, and stopped counting, because they had begun to.

REM onset, Tomas: 01:14. Gideon: 01:16. Priya: 01:14. Bex: 01:15. Not close. Identical. Four separate brains in four separate skulls down four separate corridors, and they had all turned into REM inside the same two minutes, the way a flock turns. She scrolled back. The slow-wave troughs of the early cycle sat on top of one another like tracings of a single hand. She had run cohorts. Roommates drifted toward each other over weeks, a little, the way clocks on the same wall do. This was not drift. This was a chord, struck.

Joss, she thought, before she could stop it — the way she still told him things — they all went under at once.

She woke Priya for a reading, because the protocol called for a 0200 arousal-threshold check, because she needed to see a face that wasn't a waveform. Priya surfaced easily, too easily, and her eyes when they opened were not confused. They were patient. As if she had been waiting on the other side of the wake for someone to knock.

"You saw it," Priya said. Flat. Not a question.

"Saw what."

"The traces. Lining up." Priya wet her lips. "We go to the same place. There's a house. You'll see." She said you'll the way Bex had said it, with the same dreadful kindness, and then she lay back down and was under inside a breath, and Wren sat with her own pulse loud in her ears and the green coat in the sketchbook and a smell that had not been on the ward an hour ago — lavender, and under it, wet plaster, old stone after rain — and she did not, this time, tell herself she'd imagined it. The hook by the staff door had been bare at the dawn shift. She'd told herself the coat had never been there. She had known she was lying.

She finished the round at three. The corridor lights were down to their nightsetting, blue as deep water, and she walked it counting doors to keep her hands from the smell — one, two, three — Tomas, Gideon, an empty, Bex, and Priya's at the end. Single occupancy. They were all single occupancy. She'd checked the manifest twice; the clinic kept them apart on purpose, one mind to a room.

She stopped at Priya's door.

Two people were breathing inside.

She stood very still and made herself hear it the way she'd hear a trace, without wanting it to be anything. One breath slow and even, the long pull of stage-three sleep, in for four, hold, out for six — Priya, exactly as the monitor had her. And under it, or beside it, not matched to it, a second rhythm. Lighter. Quicker. A breath that did not belong to the body she could see through the narrow glass: Priya alone on the bed, on her back, hands open, the grey blanket folded to its hand's width, no one in the chair, no one in the corner, no one.

Two rhythms.

Wren put her hand on the door and counted, and got to four, and did not get to five before the second breath, the lighter one, the one with no chest to lift, paused — the small catch of a sleeper who hears a sound in another room — and then went on, in the dark, beside the girl who lay alone.

The lavender was very strong now.

She opened the door.