First of all it depends on your age, as we get older our deep sleep decreases and second for most people if not all deep sleep happens during the first hours of the night so right after you have fallen asleep. But yeah, you could do some research, in regards to sleep check out the book ‘Why we sleep’ by Matthew Walker.
First of all it depends on your age, as we get older our deep sleep decreases and second for most people if not all deep sleep happens during the first hours of the night so right after you have fallen asleep. But yeah, you could do some research, in regards to sleep check out the book ‘Why we sleep’ by Matthew Walker.