Long rest should come with a downside (for instance you have to eat food like in PnP. If you don't eat then you will have a debuff on the next day. Or maybe possible ambushes, etc.). Otherwise it feels very meaningless since you can do it after every fight.
Short rests on the other hand should be like in PnP (1 hit die per level and you can rest as long as you have hit dice left).
