Press Start Sleeping. You earn SleepCash every second, and upgrades can make that rate much higher.
Nightmare Monsters crawl toward your bed. Click them before they touch you. If one reaches your bed, it can wake you up.
Dream Upgrades never run out. Their costs keep rising, but each level still improves your sleep runs.
Reach level 5 in all four upgrades to unlock Legend Mode: triple SleepCash, bonus cash for defeating nightmares, but scarier nightmares.
Reach level 10 in all four upgrades to unlock Mythical Dream Mode: 10× SleepCash, but monsters are 3× faster.