need help fast need to make a choice

guys i was ready to order from glamourhairextensions to order the hair piece the one that resembles the jessica simpson line.then i came acrss glamour hair for the seamless hair extensions.both are the same price.the semless ones look good but i am confused about application.my hair is naturally wavy damaged and tangles like hell.i dont know if sleeping with the seamless ones would be a good idea.now is it difficult to take them out every night.will the tape hurt my real hair?will it pull on it etc.you know what i mean?i like the idea that it isnt clips because they usually are so bulky.but the one piece jessica inspired look so easy too. WHAT DO I DO? i am so stupid when it comes to these things.i hope you guys can help. thax a bunch