Healthy Sleep is a passive item in neverbirth, a mod for The Binding of Isaac.

While heldCreates one bed in the floor's starting room, shared by all holders.

Return to that room after obtaining the item to generate it.

Sleeping takes 8 hours of real time at normal speed.

Pausing or leaving the game stops progress.

Hold a gameplay action for 15 consecutive frames to accelerate sleep; holding different actions together increases the speedup with diminishing returns.

During sleep, gameplay inputs only accelerate progress.

Completing sleep fully restores red hearts, then grants 3 soul hearts.

The bed uses the normal game's bed eligibility and selects the actual sleeper through bed collision.

Only that sleeper receives the completed-sleep reward.

Ordinary beds elsewhere are unaffected.

Supported actions are movement, firing directions, bombs, active-item use, pill/card use and dropping items.

Multiple keys or controller bindings for the same action count as one action.

With n different actions held long enough, the speed multiplier is 1 + 3599 times the square root of n.

One mature held action gives a 3600-times speedup.

Releasing an action removes its contribution.

Sleep progress is saved for continuing the run; time spent outside the game does not count.

Leaving the starting room during unfinished sleep, losing all copies of Healthy Sleep, or the sleeper dying cancels that sleep.

Reacquiring the item does not create another bed on the same floor.

Health gains follow the character's normal health limits.

• Download neverbirth from the Steam Workshop.