Yes, you can do this. As long as the creature is 200# or less and less than 20 cubic feet in volume. I believe it is currently undefined as to the air requirements of a living creature so if you’re going to keep them in the bag for a longer length of time, you’ll need a ruling from your DM.
Does a bag of holding keep things fresh?
Concepts. Bag of Colding: Bag of hold, but kept at crisp cool 40 degrees… Galdware of Repose: This magical Box keeps dishes at the peak of freshness, just as if they came right out of the oven.
Can creatures escape a bag of holding?
Potentially, yes. For whatever it’s worth to you, rules designer Jeremy Crawford has ruled that a bag of holding can be opened from the inside. That said, the item doesn’t explicitly address that possibility so there’s room for a DM to rule otherwise.
Can a Warforged survive in a bag of holding?
Yes.
How long can you survive in the bag of holding?
Breathing creatures inside the bag can survive up to a number of minutes equal to 10 divided by the number of creatures (minimum 1 minute), after which time they begin to suffocate.
What happens when you put a bag of holding in?
Placing a bag of holding inside an extradimensional space created by a handy haversack, portable hole, or similar item instantly destroys both items and opens a gate to the Astral Plane. The gate originates where the one item was placed inside the other.
Can a living creature still suffocate in an open bag of holding?
According to the DMG, there is about 10 minutes of air inside the bag. The player know this, and has decided to keep the bag ‘partially open’, so there is a sort of vent to the outside world. For the sake of this question, if the bag is left with the flap open, does a living creature still have to worry about suffocation?
How is the bag of holding preferable to the hole?
Drawing an item from the bag in combat is reasonable (if expensive); from the hole, not so much The bag is less suspicious. Unless you draw something that obviously would not fit, a Bag of Holding just looks like a bag. A portable hole is going to look highly magical when in use. Needs less space.
How much water does a bag of holding hold?
Research any unknowns and solve assuming that only water flows into the bag. According to RAW a Bag of Holding can hold 64 Cubic feet or 500 lbs. There are 7.48 gallons in one cubic foot of water and that totals 478.72 gallons of water. A gallon of water weighs 8.34 lbs.