Memory Foam Mattress topper? - Fiberglass RV


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Old 10-06-2012, 12:23 PM   #1
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Memory Foam Mattress topper?

Good Morning!

So my question is: When your bed is not exactly the "right" dimensions for a real Full sized bed, what have you done that made the mattress topper fit correctly? I was thinking of cutting the edges, but wondered if someone has come up with a better answer?

I am looking at the Costco memory foam with gel mattress topper and my "full" bed is too wide as a twin and too narrow as a full, so the topper is either too small or too large. I was electing to go for a full and cut it down. What have others done and what did you use to cut it? (Thinking of an electric knife, like I did the cushion foam, though the first electric knife broke after the cushions were almost done).

Thanks for any thoughts.
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Old 10-06-2012, 01:54 PM   #2
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We just cut the topper to fit and all was good
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Old 10-06-2012, 01:56 PM   #3
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Did the same as Jim and all was well also.
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Old 10-06-2012, 02:38 PM   #4
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I have no experience with cutting down mattresses, so can't help you there. I do know that a lot of professionals who cut down foam rubber and styrofoam use long sharp razor knives with a slow slicing cut. Don't know if that would work with "memory foam with gel", though...
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Old 10-06-2012, 03:23 PM   #5
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I have never had to cut one to fit yet,memory foam is pretty flexible and may be able to conform to your less than perfectly sized bed space?
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Old 10-06-2012, 06:07 PM   #6
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The best device for carving memory foam (other than a hot wire cutter) is an electric carving knife.
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Old 10-06-2012, 06:45 PM   #7
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I used a strait edge on top, a board underneath, and a utility knife. Worked ok but I bet the electric carving knife is better. I have heard that recommended for other types of foam as well. Raz
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Old 10-06-2012, 07:47 PM   #8
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When fitting a mattress that was 1.5" memory foam atop 2.5" regular foam for my teardrop trailer, I knew I had to cut it in half lengthwise in order to make it easier to insert and remove. First, I tried cutting it in half with a filleting knife...lousy results. I cleaned up that edge and finished the job with an electric knife...much better results. Just my experience.
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Old 10-06-2012, 08:08 PM   #9
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The last one I did I just used scissors, previously however I used an electric carving knife like the pro's use.
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Old 10-07-2012, 12:13 PM   #10
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I think I'd worry about the gel part. Is it something that could/might leak out and get where you might not want it?
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Old 10-07-2012, 10:58 PM   #11
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Bedding - (see photos) is the most challenging for storing. Most of the time we keep the bed set up in good weather. I made a mattress topper out of a 2" Queen size thermafoam topper that we bought from Target. I made a pattern by tracing the cushions on big sheets of brown paper (comes on a roll.) I cut the foam with a sharp, good quality bread knife. The knife is about 12" long. Use short back and forth movement, much like an electric knife. I did need to piece one piece. Simply apply contact cement to each edge, wait for them to dry, butt the edges carefully (You only get one try.) The mattress cover is composed of two 23" wide strips covered with 100% cotton knit (think t-shirt fabric) custom covers that double as sheets and zip off for washing. These each can be rolled up and secured with a nylon strap. They fit perfectly in the hatch under the bench.
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Old 10-08-2012, 07:16 PM   #12
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Gilda........what did you do with the seat cushions when you "made the bed"?
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Old 10-08-2012, 07:29 PM   #13
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Quote:
Originally Posted by Gilda View Post
Bedding - (see photos) is the most challenging for storing. Most of the time we keep the bed set up in good weather. I made a mattress topper out of a 2" Queen size thermafoam topper that we bought from Target. I made a pattern by tracing the cushions on big sheets of brown paper (comes on a roll.) I cut the foam with a sharp, good quality bread knife. The knife is about 12" long. Use short back and forth movement, much like an electric knife. I did need to piece one piece. Simply apply contact cement to each edge, wait for them to dry, butt the edges carefully (You only get one try.) The mattress cover is composed of two 23" wide strips covered with 100% cotton knit (think t-shirt fabric) custom covers that double as sheets and zip off for washing. These each can be rolled up and secured with a nylon strap. They fit perfectly in the hatch under the bench.
What a great idea, I'm adding another one to my to do list
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Old 10-08-2012, 10:32 PM   #14
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I have a 3" memory foam topper I bought at Costco and the corners just mould into the rounded corners with no problem.
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