Time for some nature based "actually".

1: turtles and most reptiles have no parental instincts at all. They lay their eggs and move on. Crocodilians are one of the only exceptions.

2: Hibernation doesn't work like most think. In this case, it would depend on where his species is from and since a lot of tortoises come from warm climates they would have no need to sleep in the winter. In fact what animals most people think is hibernation is what is called rumination, basically the same thing except not as deep as the animal will wake if the weather is warm enough, like say it's 75 in February. Plus you can train it out of them in captivity.

As a bonus many mammals people think hibernate don't, either, like bears. It's that ruminate thing. Bats are really the only ones who do and maybe shrews (didn't learn about shrews). This means BTW that SpongeBob is wrong. Squirrels, especially ones from Texas, don't hibernate or ruminate. Why do think they bury and store nuts and food for the winter?