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 New Posts  Choosing a SIM
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Clarkey1959
Posts: 49
Clarkey1959
   Old Thread  #39 22 Jun 2021 at 6.45pm  0  Login    Register
In reply to Post #37
Cheers Baitman
Zack
Posts: 3159
   Old Thread  #38 22 Jun 2021 at 7.40am  0  Login    Register
I have two self inflating mattresses, the Helium 3.8 and a Dutch army thermarest, I find the Dutch army one far better than the Helium, its narrow enough to keep folded inside a bedchair, very warm in winter, perfect to just sleep on in Summer, very robust and the price is right.

The British army one is similar but only 3/4 length.

Baitman
Posts: 4863
Baitman
   Old Thread  #37 21 Jun 2021 at 11.25pm  0  Login    Register
Thermarest are decent. A 3/4 mat is well better.
Clarkey1959
Posts: 49
Clarkey1959
   Old Thread  #36 21 Jun 2021 at 8.46pm  0  Login    Register
In reply to Post #35
Thanks Braders
braders1978
Posts: 17983
braders1978
   Old Thread  #35 21 Jun 2021 at 7.32pm  0  Login    Register
Helium 3.8 on ebay,only on at £10 at moment with 4.20 p+p
Clarkey1959
Posts: 49
Clarkey1959
   Old Thread  #34 21 Jun 2021 at 7.26pm  0  Login    Register
In reply to Post #33
Will do, Looks like the cheapest price at the moment is £50
swiftycarp
Posts: 1028
   Old Thread  #33 21 Jun 2021 at 7.20pm  0  Login    Register
In reply to Post #32
Let me know if you manage to get a good deal on one please mate.
Clarkey1959
Posts: 49
Clarkey1959
   Old Thread  #32 21 Jun 2021 at 6.42pm  0  Login    Register
In reply to Post #31
Thanks for that. I'll order one!
Hope you are fully recovered and still able to go fishing
Cheers
Dave
oldgeezer
Posts: 27037
oldgeezer
Mr Linky Poo
   Old Thread  #31 21 Jun 2021 at 6.01pm  0  Login    Register
In reply to Post #30
I have a Helium 3.8 mat and prior to my illness was 17 stone and a 50 inch chest and trust me its plenty big enough fits inside the recess of any bedchair I would think

IF you were laying on the ground you would need a thicker wider one but you are putting it on a bed chair so its perfect no need for anything thicker or bigger its quality you need not some cheap ****ty one that lasts only a season IMO
Clarkey1959
Posts: 49
Clarkey1959
   Old Thread  #30 21 Jun 2021 at 1.33pm  0  Login    Register
In reply to Post #19
Me being thick here. I've bought a second hand Nash bedchair which looks like its a Nash Scope Air Lite? I've measured the dimensions which are length 182cms. Width from edge to edge 71cms, the centre non raised bit is 50 cms wide.
So picking your brains is the Helix 3.8 too narrow or should it fit in the inside bit?

Thanks guys
Dave
g4fne
Posts: 15055
g4fne
   Old Thread  #29 15 Apr 2021 at 8.39pm  0  Login    Register
In reply to Post #28
Same with a lot of things ... You tend to get what you pay for .... Thicker SIMS, better quality, better valves, insulating qualities etc ... The decision you make is whether the extra quality is worth the extra cost
Jamesvg
Posts: 1160
Jamesvg
   Old Thread  #28 15 Apr 2021 at 7.38pm  0  Login    Register
I presume a thicker SIM is in general comfier and more insulating. What do the better/more expensive SIMs add? Is it primarily just a longer life span or do they also have superior performance vs a cheaper SIM of the same thickness?
SouthMark45
Posts: 112
   Old Thread  #27 15 Apr 2021 at 4.55pm  0  Login    Register
In reply to Post #26
Cheers Chuffy
Chuffy
Posts: 6724
Chuffy
   Old Thread  #26 15 Apr 2021 at 3.50pm  0  Login    Register
In reply to Post #25
I just leave it for 10 minutes or longer after I've opened up the bedchair, packing it away just undo the valve and fold the bed up
SouthMark45
Posts: 112
   Old Thread  #25 15 Apr 2021 at 1.00pm  0  Login    Register
Have just purchased the Mountain Warehouse Helium 3.8 which I intend to leave permanently under my sleeping bag which is attached to my bedchair. A Couple of questions to owners of this SIM please

1. How long does it take to inflate?
2. How long does it take to deflate after I open the valve?

If anyone has any other useful nuggets of advise that would be really helpful

Thanks
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