well let me give u all some advices i have done research for the 3 Ss(simmons ,sealy,serta).
For simmons they r renowned for the support for their original pocketed coil technolgy .Simmons is the first that bring in individual pocketed coil decades ago it is the orginal only orginal pocketed coil are pre-compressed. I know u all dont understand. For example when we pre-compresses a coil from a 7 inches(Simmons have the highest coil height in the market) to a stardard height simmons set, the coil actually will be insisting on getting up so we slp on the mattress we can feel the support.Imported from USA,Japn,Korea,Canada,OEM malaysia,OEM China n OEM Thailand
Sealy entered Singapore market not very long Sealy are renowned for their Posturepedic coil we call it open coil all the coils are fully connected with wire.Posturepedic coil have sensory arm n triple off set it is said to be able to adjust to the correct alignment for our body.Sealy mattresses are mostly very comfortable.Sealy is the world's best selling mattress. Total Sales figures (world no. 1) Sealy + its two other sub companies.Sealy also have very wide price range(cheap to very expensive)as compared to Serta n Simmons.Most range Asemble in Thailand.Only some Unicase(expensive) from USA
Serta is the youngest in Singapore mattress industry compare with the other 2.Serta is renowned for its mira coil technology is also name open coil fully connected with wire among the coil, n their comfort level for mattress.If serta says it is no.2 no one dare to compete with it for comfort level.But Serta these recent years did come out with their pocketed coil series for their mattresses.Serta did also won the title (We make the world's best mattress).Most range asembled in indonesia. practise OEM(original equipment manuafacturing).Some from USA.
Well If u wanted support higher can go for Simmons,if u wanted Comfort level higher go for Sealy or Serta open coil are used to make soft n comfortable mattresses.If you want support n no motion transfer between u n ur partner can go for Individual pocketed coil.If u only more concern about enjoying of comfort level 3 minutes before u slp u can go for open-coil Sealy or Serta.Only Simmons USA range can be compatible to Sealy n Serta for the comfort level.If u r more concern about the 8 hrs of sleep u will need good support u can go for Simmons.Choose a mattress according to what your needs.Hope it will help u to choose a mattress wisely