Oh yes, that is very typical of recovering from insomnia and is a good sign that things are going really well. The reason you are regressing is because you are sleeping really well! Naturally your sleep drive is getting reduced and because of this and you are recovering from being sleep-deprived. I went through this as well. I too got out of bed when I couldn’t sleep within 20 minutes and it was super counter-productive. Getting out of bed got me super anxious and made awake for at least 2 hours more while if I just stayed in bed, I would have drifted back to sleep in much less time. That is just my personal experience, everyone is different. If you are not anxious about being awake in bed, just stay in bed like I am. Or for normal sleepers for that matter. Normal sleepers don’t get out of bed every 20 minutes, they just stay in bed. I now allow 8.5 hours for sleep, I find I can sleep straight for 6-7 hours, before getting up the first time to use the toilet and going back to bed. The second leg of sleep is usually lighter, often drifting between light and REM sleep and comes in intermittent bouts. I discover my minimum sleep duration is 6 to 6.5 hours before my body will wake me up without fail. Any sleep I get after that is considered bonus to me, which my body doesn’t really need but is giving me anyway, because: 1. I am completely relaxed and not anxious at all. 2. The ideal conditions for sleeping are present namely being in a cool, dark room and getting really comfortable between the sheets. Sleep is no longer some mysterious black box to me, I discover it is the staying awake long enough that is putting me to sleep pretty quickly and unfailingly every single time, not what time it is when going to bed or taking any sleeping medications or doing any kind of sleep efforts like the so called relaxation/breathing techniques, the sleepy teas or the apps designed to help calm/relax you in bed. I got rid of them all and went from sleepless nights to sleeping really well now! Sleep is a paradox, the less effort you do to sleep and the longer you stay awake, the better it gets!