# deep sleep

The slowest, most settled stage of sleep, when it’s hardest to wake someone. Most of it comes in the first part of the night.

## Where it comes up

- [How do I get through the day after a bad night?](https://nitez.com/after-a-bad-night)
- [Are naps good for you?](https://nitez.com/are-naps-good-for-you)
- [How long does caffeine stay in your system?](https://nitez.com/caffeine-and-sleep)
- [Why do I keep waking up at 3am?](https://nitez.com/waking-at-3am)
- [Why am I still tired after a full night’s sleep?](https://nitez.com/tired-after-sleeping)
- [What happens while we sleep?](https://nitez.com/stages-of-sleep)
- [What is deep sleep, and am I getting enough?](https://nitez.com/deep-sleep)
- [Why does my sleep change as I get older?](https://nitez.com/sleep-in-later-life)
- [What makes us feel sleepy?](https://nitez.com/sleep-pressure)
- [What are night terrors, and what should I do when my child has one?](https://nitez.com/night-terrors)
- [Why do people sleepwalk, and should I wake them?](https://nitez.com/sleepwalking)
- [What makes a bedroom good for sleep?](https://nitez.com/the-bedroom)
- [Why are some nights better than others?](https://nitez.com/good-nights)

https://nitez.com/words/deep-sleep