That’s a great question! I’ll put it this way, it takes getting used to. Depending on how fast the train is moving helps determine how smooth or shaky the ride is obviously. Now, on this particular trip, I found the gentle rocking comforting and when we would stop, I would wake up. Someone who has issues sleeping while in motion may have trouble. The bedding itself isn’t the most comfortable thing in the world, but I think that comes to be expected. But it’s perfect for someone with an adventurer’s savy!