SleepUtility Blog

We compared the free plans of popular sleep apps using their own pricing pages and support documents. Only a handful are free without a trial or a paywall, and one well-known app stopped being free in 2025.

Research on all-nighters points to one practical rule. If you can fit in even one 90-minute sleep cycle, take it, and time your caffeine and naps around it. Here is a night plan built on the studies.

SleepyTi.me began as a weekend project in 2010, was sold in 2019 and has redirected to Sleepopolis since 2022. Here is the timeline, the apps that use its name, and where its users went.

SleepyTi.me now redirects to Sleepopolis. Here are the best clean, simple, and free alternatives to help you wake up refreshed.

SleepUtility is here to optimize your sleep by helping you align with natural sleep cycles