Has anyone got any advice or recommendations on lie flat car seats? I live 8 hours drive from my parents but I read that a baby should not be in their car seat for more than an hour. They recommend they should be lying flat. Are these lie flat car seats safe? They are an extra expense for a short amount of use, approx 6 months max but I would rather not have to break our journey every hour as it will take forever to get there. I'm sure my family would go mad if we didn't visit. My parents will of course come to us but grandparents, aunts and friends etc will want visiting.