Would love to see some research on it, but this reminds me of the structure of a traditional yoga asana practice and I've wondered the same thing about rest after a learning/training session. Typically at the end of a practice session of yoga asana (and sometimes in between postures) you'll take savasana and just rest in open awareness. A teacher of mine would always say this is the most important part of class, to let everything integrate in.
When I started training Muay Thai I found that I often would "lose" a lot of what we had worked on in class, and then started taking savasana right when I got home. In that not-quite-sleep state my brain would replay what we worked on.
Sometimes if I'm really bashing into a wall with some coding problem I'll just take savasana for 10-15 minutes and get back to it. I feel like it helps.
When I started training Muay Thai I found that I often would "lose" a lot of what we had worked on in class, and then started taking savasana right when I got home. In that not-quite-sleep state my brain would replay what we worked on.
Sometimes if I'm really bashing into a wall with some coding problem I'll just take savasana for 10-15 minutes and get back to it. I feel like it helps.