The Problem

My character gets tired at the worst times and I keep passing out mid-run.

The Solution

Fatigue is the most dangerous status effect in Abiotic Factor because it is invisible — there is no health bar for tiredness, only a yawning animation and a warning text that is easy to miss. Once fatigue reaches critical levels, your character stumbles, attacks slower, crafts slower, moves slower, and eventually passes out. Passing out mid-combat or mid-portal is usually a death sentence.

The Bed — Your Save Point and Reset A Bed serves two functions: it is your game save point, and it completely resets fatigue. Craft one from the Sofa recipe — materials are found in the Office Sector (fabric from couches, wood from broken furniture). Place your bed in a room that meets three requirements:

1. Powered — connected to your electrical grid. A dark room invites ambushes.
2. Lit — place a wall light or lamp nearby. Enemies are less likely to path into well-lit areas.
3. Secure — at minimum, place it behind a closed door. Ideally, behind a Shock Trap or Portal Suppression Field.

Fatigue Acceleration Factors

• Heavy crafting sessions (multiple bench recipes in sequence) drain fatigue faster than exploration.
• Carrying heavy loads (near capacity) increases fatigue rate.
• Combat — especially prolonged melee fights — accelerates fatigue buildup.
• Running instead of walking burns stamina and adds minor fatigue over time.

Traits and Consumables

• Night Owl (cost: 4 skill points): Reduces fatigue buildup by 50%. This is considered a must-have trait for solo players because you spend half as much time managing sleep.
• Coffee (Wiki verified): Recovers +30 fatigue immediately. Found in vending machines (Cafeteria, Security break rooms) or crafted. Use when mid-expedition and cannot reach your bed. Coffee does not replace sleep.
• Energy Drink: Stronger than coffee but rarer. Save for boss fights or long portal runs.

Co-op Sleep Strategy In multiplayer, coordinate sleep schedules. If all four players sleep at the same time, the base is undefended and vulnerable during the night. Stagger sleep so at least one player is always awake and armed. The awake player can craft, organize storage, or stand guard.

Step-by-Step

1. Find a Long Office Couch in break rooms or office areas — this is the key ingredient you cannot craft.
2. Gather 6 Cloth Scrap (from couches, curtains) and 4 Wood Plank (from broken furniture).
3. Craft the Makeshift Bed at your Crafting Bench (see Crafting Bench upgrades): 6 Cloth Scrap + 4 Wood Plank + 1 Long Office Couch.
4. The sleep mini-game (jumping over pests) makes you rest faster if you complete it successfully.
5. Choose a room near both your Crafting Bench and Healing Briefcase (see healing guide) — the "recovery hub" should be clustered.
6. Wire the room to your power grid (see star topology setup), place a wall light, and close the door.
7. Sleep when the fatigue warning icon appears — do not wait until the character yawns. By then you are already at 50%+ fatigue.
8. If you play solo, take the Night Owl trait at character creation (4 points, 50% slower fatigue).
9. Drink Coffee (+30 fatigue recovery) before boss fights or long portal runs to prevent mid-fight exhaustion.
10. In co-op, stagger sleep so one player guards the base while others rest.

Common Mistakes

• Putting your bed in an unlit, unpowered room and getting ambushed during sleep — enemies spawn and path in darkness.
• Ignoring fatigue warnings until the character passes out mid-combat or mid-exploration. Once you pass out, you are helpless for several seconds.
• Running your character to exhaustion without a bed placed — the Sofa recipe is available from the start; craft it on day one.
• In co-op, all four players sleeping at once and leaving the base completely undefended during night hours.