Observed arrival · 2026-10-03
Siesta, the nap timer that waits for sleep
An Apple Watch and iPhone nap timer that estimates when sleep begins from heart-rate trends, then starts the countdown.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Apple Watch users who take timed naps
- Worth noticing
- A fail-safe wake is set when a session starts, even if sleep detection never triggers.
Field notes
The session begins with a chosen duration; the iPhone companion can store a default, while the watch uses heart-rate trends to estimate sleep onset. The page says a safety wake is armed at launch and soft haptics signal the end. It also states that very still wakefulness can resemble sleep, and that heart-rate samples are processed on the watch and discarded after each session.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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