I don't really care about boot times, but as a tech guy 23 seconds sounds like an error to me and I want to find it and fix it :)

Also, old laptops with dieing batteries (or new ones with always-on sensors such as fingerprint readers) have some leakage during sleep so it may be better to turn them off if you are not going to use them for a few days.

edit: resume/suspend in linux works just fine and has done so for many years (in response to eltoozero)