The babies also do not need the mother to keep them warm. If the babies do not seem distressed, even if the mother is away from them a lot, the mother is likely just taking a break and you should not interfere.
[header] How to feed baby rabbits [title] Confirm that the mother is not feeding the kittens. [step] Before you take a baby rabbit away from its mother or think it's orphaned, make sure the mother is not feeding it or that she is a risk to the kitten. Mother rabbits feed their kittens about twice a day and only for five minutes.