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HyperLamina™ Spark 35°F / 1°C Sleeping Bag

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Thermally mapped insulation and half-length center zip maximize efficiency. Engineered to be one of the lightest and warmest synthetic bag on the market. Lamina™ construction welds the Thermal.Q® insulation to the shell and lining, eliminating the cold spots caused by traditional stitching. By mapping different insulation weights throughout the top of the bag we are able to concentrate warmth where you need it most – around your core and feet. Thermal efficiency is optimized by a performance mummy-cut, face gasket and single center half zip.

Features:

Engineered to be one of the lightest and warmest synthetic bags available
Proprietary welded Lamina™ construction enhances loft and eliminates cold spots
Zoned insulation maximizes warmth where it's needed most
Thermal.Q® insulation has outstanding compressibility and maintains excellent loft
Single #5 half length center zip with dual sliders minimizes weight and still allows for ventilation
Comfort footbox follows natural foot position for maximum warmth and comfort
Face gasket and tailored hood comfortably block drafts at the hood opening and seal in warmth
Performance mummy cut is snug, reducing girth, weight, and bulk and maximizing thermal efficiency
Ultralight shell is soft and highly wind resistant
Nylon compression stuff sack and mesh storage sack included
Imported
Style# 1568251 / 1568252

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Reviews

HyperLamina™ Spark 35°F / 1°C Sleeping Bag is rated 4.5 out of 5 by 34.

Rated 2 out of 5 by Ashbash from Honest review I have hiked with this sleeping bag a few times and have had no issues. Thought it was well made, loved the weight, and ability for it to dry. However, went on my first hike in cooler weather temperatures went down to 4 at night. I was freezing despite having multiple layers, gloves and toque on. I was very disappointed. My sleeping pad has a r value of 5 and I was warm facing the pad but anything facing the tent ceiling froze. For those considering this bag for use in cooler temperatures a liner bag is a must or look at a different bag.

Date published: 2019-05-27

Rated 5 out of 5 by VIhiker from best synthetic bag just starting out doing over night hikes, I have a 34ltr backpack and this sleeping bag is perfect for me packs small and warm, front zipper is also convenient.

Date published: 2019-05-22

Rated 5 out of 5 by Ben86 from Why bother with down? For most backpackers, the minimum weight penalty for using this lightweight synthetic bag over down is well worth the cost savings and the wet weather insurance. I was generally impressed with how packable the bag is, granted an 800 fill down bag will pack smaller, but for twice the money, I can spare a tiny bit of space. The bag is light ~1.75lbs. Are you gonna make your 10lb baseweight? Probably not but who cares; with the money you saved you can buy yourself something nice to get over it. Overall I'm very happy with the bag, the center zip is a non-issue, not bothersome at all, actually I prefer it, very practical if a bit unorthodox. I suppose it wasn't a hit since they are discontinuing the hyperlamina (although the lamina eco appears to be the closest equivelant). I find the cut to be roomier than I need, granted I am rather short and slim for a man at 5'2" 135lbs. I wish I could have gotten it in a short version, but I see that MH also agrees and is now offering all their bags in short. Nice move MH. I think that unless you are really weight obsessed, or very limited in pack space, and you are willing to buy an 800+ fill bag, the lamina synthetic bags are a great choice. I compared the packed size and weight of these synthetics to some 600-650 down bags on the market, and there is little to no difference in weight, packed size, and price (assuming a bag of similar cut). So I ask you this ... Why buy a down bag, just to worry about water and caring for down if you're not getting any other benefits? If you're reading this, and the hyperlamina is still available, I highly recommend. Cheers.

Date published: 2019-04-12

Rated 5 out of 5 by FredBar from Best Synthetic Bag in the Market I forgot to add the period above. With this bag, you can almost cover the demands for 3 seasons in most of the USA. Did you know that it weighs in at less than many of the 'popular' brands 40 degree down bags? How about the fact that it can keep you warm even if the outside gets damp from all that dew that accumulates at night when you 'cowboy camp' at slightly less than 40 degrees? And it super-dries fast! This is one of a handful of 'set it and forget it' bags that soldiers on without a care in the world. At 5'11", 200 lbs, 33 inch waist and 44 inch chest I still have all the room I need. The center zipper makes it for easy access in and out the middle of the night. There is simply no competition in the synthetic bag market. I wonder what would happen if MHW decided to make blanket versions of this bag and the Hyperlamina Flame 20.

Date published: 2019-04-12

Rated 5 out of 5 by Britishsteele from Perfect for Motorcycle Camping When I saw this sleeping bag on sale, I jumped on it as a gift for my husband for our upcoming motorcycle camping trip. When it came in my husband insisted it wouldn’t keep him warm because it was way to light. We took it out car camping as we wanted to test some other gear and our 2nd night out, temps dipped to about 42f with 45mph winds. My husband stayed warm and the bag did exactly what it was supposed to do. He said that the center zip takes some getting used to but it’s not a deal breaker. He’s 6ft/230 and I purchased the Long option and it was perfect. Our pup thought it was the perfect bag to curl up in!

Date published: 2019-04-05

Rated 5 out of 5 by Star666 from HyperLamina Spark 35 Since the loss of my MH sunrise 55 degree bag, I’m a hot sleeper so 35 maybe overkill for me. Attention to detail is MH signature, the center zip is new to me, and so far is a good idea, although fully unzipping is not possible. This is a allround bag, good to pack for longer treks and very compressible.

Date published: 2019-03-27

Rated 5 out of 5 by jessyucca77 from Really nice down alternative Nice weight for being a synthetic bag. I really like the center zip.

Date published: 2019-03-15

Rated 4 out of 5 by Topher71 from Great light synthetic bag for the money! I’ve used this bag extensively in Utah, Colorado, on Mount Baker, the Wind River Range, and in the Bugaboos. I’m 5’10”/178cm and the regular fits me well. The bag is actually quite roomy and comfortable. For a synthetic bag it is fairly light and packable. Good to about 35F/2C. A down bag would save weight and pack smaller, but not only will it cost you more money, it will be more fragile and susceptible to moisture issues. The center zip is nice for us side sleepers, but makes it awkward to use unzipped as a quilt in warmer temps (the hood is in your face). Great choice for moderate temps in wetter climates!

Date published: 2019-02-21

Rated 4 out of 5 by BigOaks from Good Product, different than advertised I absolutely LOVE this bag as long as I use it correctly. Packs down nice and small. Doesn't weigh much of anything. My only complaint is that it definitely is not a 35 degree bag. I just went on a hike on the Fire Creek Rim Trail in NC. It was around 34-40 degrees each night and i was still pretty chilly. I had to wear 2 pairs of socks, pants, and a shirt to stay comfortably warm. I would say this is more of a 45-50 degree sleeping bag. Other than that, the construction is sound and its a great bag.

Date published: 2018-06-22

Rated 4 out of 5 by Sonyaa44 from Great bag for it's price, weight, packability When I got this bag, it impressed me on a first sight. It's small and cozy. Material seems great. Zippers and all body solid. With good insolated sleeping pad I'm feeling good in about 2-3 degrees Celsius. Which is better than what I expected. The only concern is a length. I think it's short. I'm 169cm, 66 inch and I think it's right size for me. Which is pretty confusing, because they say inside length is 78 inch. But for me good. I thought it'll be too long for me, but it's fine. (This review was collected as part of a promotion.)

Date published: 2018-06-16

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HyperLamina™ Spark 35°F / 1°C Sleeping Bag

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HyperLamina™ Spark 35°F / 1°C Sleeping Bag

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