What should I do if the travel seat of a bed or car cannot be placed flat and I cannot sleep in the car?

If your bed car travel seat is not level, you can consider the following methods:

1. Buy a mattress: You can place some soft cushions on the mattress, such as Pillows or folded blankets to make seating more comfortable.

2. Use an air cushion: You can use an air cushion to support the seat and make it flatter. This method requires some tools and skills, so make sure you understand how to install them properly.

3. Modify the seat: If you have enough budget and skills, you can consider modifying the seat. Some models have rear seats that fold flat into a large bed, while others require some modifications to achieve this.