😴
Besplatno Sleep Cycle Calculator
Find the best time to go to bed or wake up based on 90-minute sleep cycles, so you wake between cycles feeling refreshed instead of groggy.
Runs in your browserNo sign-up, no pop-upsNije potrebna prijavaBesplatno zauvek
Go to bed at
9:45 PM
9 hrs
6 cycles · ideal
Go to bed at
11:15 PM
7.5 hrs
5 cycles · ideal
Go to bed at
12:45 AM
6 hrs
4 cycles
Go to bed at
2:15 AM
4.5 hrs
3 cycles
💡 Sleep happens in ~90-minute cycles. Waking at the end of a cycle (rather than mid-cycle) helps you feel refreshed instead of groggy. Most adults do best with 5–6 cycles (7.5–9 hours), plus ~15 minutes to drift off.
Optimize for your platform
Kako funkcioniše
1
Unesite
Unesite vaš tekst ili podatke.
2
Obradite
Obrađeno odmah u vašem pregledaču. Bez servera, bez čekanja.
3
Preuzmite
Sačuvajte rezultat. Ništa se ne čuva.
Zašto koristiti naš?
✓Completely free — no hidden costs, ever
✓No account, email, or login required
✓Runs entirely in your browser — no uploads
✓Works on any device — phone, tablet, desktop
✓Open and ad-supported, with no tracking
✓Loads fast, with no installation needed
Slične alatke
Popularno
Generator QR koda
Generišite QR kodove za URL adrese, tekst, WiFi i još mnogo toga. Bez vodenog žiga.
Isprobajte
Popularno🎨
Birač boja i generator palete
Birajte boje, konvertujte između HEX/RGB/HSL i generišite harmonične palete.
Isprobajte
Popularno🔐
Generator lozinki
Generišite jake, nasumične lozinke sa prilagođenom dužinom, tipovima znakova i isključenjima. Bez ograničenja, bez prijave.
Isprobajte
Da li vam je ova alatka bila korisna?