How to choose serta mattress?

I need to buy a new one for improving my sleeping, tips please? Or should I get another type of matress?

 

Try a pocket-spring mattress. It's soft but solid at the same time.

 

I think it's the same like in case of any other type of matress There are very many types of them but basic tips for choosing a good one don't differ much.
The main things for making the best choice for you are:
- don't buy a too cheap one, like one of Ikea models, they usually have a low quality, won't last long and are often filled with toxins and other harmful chemicals
- if you have a health condition, then consult firstly about the best type of matress with your doctor/physical therapist
- high level of comfort for you or together with your partner (for example, do you like more soft or firm ones? https://sleepmentor.net/serta-memory-foam-mattress-reviews/ )
- check for possible models in online shops but don't buy them there because you'll need to make a test drive for it firstly (because you'll use this item for a long time!), for example just try to lie on the mattress in the store for at least 10 minutes
- look through information about various types of filling material for them and decide which one you prefer (for example, memory-foam, pillow top and so on How to purchase the right mattress | Serta.com )
- always check the warranty (a high-quality matress should have minimum of a 10 year full replacement or non-prorated warranty)
- ask about trial periods or guarantees before making the final decision