Amerisleep AS3 Vs AS4 Review

Amerisleep AS3 Vs AS4 Review

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Amerisleep is a popular company with a line of memory foam mattresses. As the company grows in popularity, people naturally wonder which model in the line would be best for them. The AS3 and AS4 mattresses are two of the most popular offerings from the company. I’ll try to highlight the main similarities and differences between the two mattresses to help you if you are making the decision of AS3 vs AS4.

Note: The AS3 was formerly known as Liberty and the AS4 was formerly known as Colonial.

Amerisleep Liberty vs Colonial Mattress Review

Key Similarities

  • Same trial periods / return policies / customer service
  • Both use bio-based memory foams
  • Both are catered to side and combo sleepers
  • Both have celliant in the cover

For more information on all mattresses from Amerisleep, check out my Amerisleep mattress reviews page.

Amerisleep Liberty Bed Review

Amerisleep AS3 Bed Mattress

Key Differences

  • The AS4 is one inch thicker
  • The AS4 is slightly softer
  • The AS4 has additional measures taken in its construction to make the mattress sleep cool
  • The AS3 costs $200 less than the AS4
Amerisleep Reviews

Amerisleep AS4 Mattress

Pick The AS3 (Liberty) If:

  • You are on a budget (I think given the price range the AS3 is a slightly better value)
  • You are heavier
  • You don’t exclusively sleep on your side

See the feel of the AS3 Bed here

Pick The AS4 (Colonial) If:

  • You are especially sensitive to sleeping hot
  • You are lighter in weight
  • You sleep almost exclusively on your side

See the feel of the Amerisleep AS4 below

Get $150 Off Any Amerisleep Mattress

Bottom Line

The AS4 is slightly softer, so that is something to note for your decision. I think the AS4 is perhaps the memory foam mattress that sleeps the coolest for me of any that I have slept on, but I think the AS3 Bed is a slightly better value because it costs $200 less than the AS4. Either way, they are both great options and I don’t think you can really go wrong with either one.

Check out my full AS3 Bed review and AS4 mattress review as well.

This post was last updated on June 16th, 2017 at 1:38 pm

Leave a Comment:

Rocky Scott says January 11, 2017

I have tried Saatva luxury firm then Loom and leaf relax firm and both were great for my lower back for about 6 weeks then the pain came back. I’m now looking at the Amerisleep Liberty and would like your opinion on this mattress compared to the other two. I am 5ft 9in 140-150 lbs. sleep on my side and she is a side sleeper 105 lbs. 5ft 1in. . Any help would be appreciated. Thanks R Scott

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