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Sleeping in a bothy in my Minim 400

Gear Review – Minim 400 Sleeping Bag

18th July 2015 by Gilad Nachmani

A good sleeping bag is probably one of the first things most people upgrade in their quest for better gear; and not surprisingly, a good sleep can really make or a break a trip. I also think that a sleeping bag should be the first big investment towards a lightweight backpack as it is the best return on investment.

When it comes to sleeping bags, there is no way around it: you get what you pay for. A good sleeping bag is light, compressible, fits the temperature range that you are after, durable and comfortable. After years of using less good sleeping bags (some were plain bad), I was ready to make the investment and finally get a good sleeping bag. My first question was:

Down or synthetic?

This is probably one of the age old questions about sleeping bags, especially when used in usually wet conditions such as here in the UK, New Zealand, North-West USA or Patagonia. The classic users say without a hint of doubt that in the conditions I usually face, I should use a sleeping bag with a synthetic filling and thus make sure it works in all conditions; even if wet. The lightweight community supports the down insulation bags for a better warmth to weight ratio and better compressibility. As a progressive guy and a sucker for ultralight gear I had no doubt I was on my way to investing in a mummy shaped, down sleeping bag – and the hunt was on.

The Minim 400s hiding at the back

The Minim 400s hiding at the back

After months of research (the only way to buy gear), I read about a small British company that specializes in down products – PHD (Peter Hutchinson Designs). The PHD catalog is very much aimed for lightweight and high performance seekers, offering both synthetic insulation and ethically sourced down (and some combinations of both). All PHD’s products are made in the UK, in Cheshire.

I personally have a soft spot for small specialty brands and I tend to pay more for those products (especially with my inside connections) just to support one. PHD is one of those companies, so we ended up buying a pair (left zip and right zip) of Minim 400 sleeping bags with our own adjustments in the Autumn of 2012. Since then our 2 sleeping bags (at £290 each) have been used tens of times all over the UK and around the world. In the last year, I personally have used the bags at least 20 nights in varying places and I still love them.

Some details

PHD offer a range of sleeping bags, including a “design your own” option. Among their ranges they have:

  • Minim Range -Minimalist lightweight bags
  • Diamir Range -Mountaineering / expedition bags
  • Zeta and Delta Range -Active-use bags
  • Baltoro Range – Classic mountaineering and expedition bags, roomy and high spec
  • Xero Range -Expedition bag, with expansion room
  • Hispar Range -Ultralights for the mountain runs
Within each range there several weights of bags (400/600/800 etc) with optional sizes (wide/long so on) and the ability to have a full zip, half zip or no zip.
When we got our bags we were looking for 3 season, lightweight bags that can be connected together to make comfortable couple’s bed. The Minim range fit the bill with the 400 (rated -5°c European) weight and full zips – right and left to connect them.
Sleeping under the starts in the combined Minim 400s

Sleeping under the starts in the combined Minim 400s

Specifications

The Minim 400 is a 3 season lightweight down sleeping bag. We go a standard width and length, full zip and the standard M1 shell. Specs:

Typical Operating Temp: -5°C (23°F)

Weight: 780g (28oz)

Height: 169 – 184cm (5′ 7″ – 6′)

Width: 93 – 107cm (37″ – 42″)

900 Fill power (European)

Straight wall baffle system throughout

Leg zipper allows ventilation and temperature regulation
Leg zipper allows ventilation and temperature regulation
Top zip with a velcrue closure
Top zip with a velcrue closure
Draft baffles behind the zipper reduces heat loss
Draft baffles behind the zipper reduces heat loss

Measured dimensions:

Open: Length – 199cm, Head – 55cm, Shoulders – 66cm, legs – 40cm

Packed (not compressed) in cm: 34x15x17

Weight: bag – 835g, sack – 26g

Included in the order: Sleeping bag, carry sack and a mesh storage sack.

Minim 400 measurements

Minim 400 measurements

How I use it

The Minim 400 is the primary (and by now the only) sleeping bags we use when outdoors or traveling. The bags are always stored and maintained according to the recommendations for down products:

  • Stored loosely in a big mesh bag
  • Only compressed while walking and open as soon as possible when outdoors
  • Kept in a dry bag while outdoors even if rain is not forecasted
  • On damp/humid trips allowed to dry during the day if the weather permits
  • NEVER stays more than a few hours damp
  • Allowed to fully air dry spread out  after each trip
  • Only a specialty cleaning service
The Minim 400 in the storage mesh sack

The Minim 400 in the storage mesh sack

As I mentioned above, the bags have been pretty much everywhere we have:

  • 3 days hiking and camping in Dartmoor, UK – summer
  • A night in a couple’s bivvi in the Bracon Beacon, UK – autumn, windy
  • 3 days hiking and camping lightweight, family style in Desolation Wilderness, USA – summer, cold nights
  • 7 separate nights bivving on the South Downs Way, UK – winter and spring
  • 3 bivvi nights on the Ridgway, UK – summer
  • 1 night family camping (including a baby!) near Plumpton, UK – summer
  • 4 nights in the Peak District, UK – winter, snow
  • 2 nights in the Lake District, UK – winter, windy and frost
  • 1 night in the Yorkshire Dales, UK – winter, snow
  • 11 nights along the Cape Wrath Trail, Scotland – summer, windy, cold and wet

Despite all those many nights, the Minim 400s are in great condition and are perfectly useable.

Drying the bags on a sunny break after a damp night

Drying the bags on a sunny break after a damp night

Fit

I’m 1.75m, slim (medium shirt, small trousers) and most of the time was really happy with the Minim 400’s fit. I have just enough room for my feet and head, but when using a pillow (insulation jacket in the bag’s carry sack) my feet usually ended up compressing the down at the bottom.

I tend to toss and turn a lot and prefer sleeping on my side, so at times the bag was a little tight on the knees, causing some cold spots on really cold nights. In my opinion, going for a wider fit would have had solved the tightness issue, but I haven’t tried it so can’t give a full input on that.

A bivy night with the Minim 400

A bivy night with the Minim 400

The good

  • Light
  • Very compressible – about the size of a handball
  • Warm
  • Durable
  • Easy to maintain

The bad

  • Can be a tight fit, especially if you toss and turn much
  • Fabric is not “stretchy,” so can get cold spots when the down is compressed from the inside
  • Down is not treated to deal with humidity well – still very sensetive

Bottom Line

I have been enjoying the Minim 400 for almost 3 years now and I plan on continue doing so for a while more. Despite my love for a small brand such as PHD, I’m not sure my next sleeping bag (4+ seasons) will be from them as they are yet to offer treated down to avoid the sensitivities that down has with humidity.

Despite the high price tag, this is one of the items I use the most outdoors and if you are after a high-end, well made sleeping bag for 3 seasons, the Minim 400 is for you. Keep an eye on PHD’s bargain box or join their mailing list to get some great offers and deals to make the bitter pill of such a high price more manageable.

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Filed Under: Gear Tagged With: Down Insulation, Gear review, Long Term Gear Review, M1 shell, Peter Hutchinson Designs, PHD, Sleeping Bag, Sleeping System, Synthetic Insulation

Comments

  1. Rob says

    23rd January 2017 at 14:35

    Thanks for a very detailed review. I’ve been looking for my first down bag&as someone said in another review “scanning the web for weeks on end is the only way”. Its incredibly difficult though when some manufacturers give details&some don’t e.g. ME give just about every detail possible but Rab no pack sizes… These minims look amazing but from the pics I could see that they taper down to a narrow lower leg area which is one thing that put me off the Rab alpine 600. As of right now its looking either like one of these Minim 400/ 400 k series or the ME Glacier 400 SL. Thanks again for all the info&your experience!

    • Gilad Nachmani says

      23rd January 2017 at 17:49

      I agree Rob, judging sleeping bags at this point is really hard. One thing I will recommend is to look for a bag with treated down to be hydrophobic, it makes a huge difference when dealing with condensation on a bivy or a tent.
      The Alpine 600 and Glacier 400 are different bags, about 10 degrees different, which makes a huge difference. If you are after one sleeping bag that will do more than a warmer one (to about minus five) will do better. The Minim’s superb down is really amazing (900 fillpower) and you do get what you are paying: great compression and loft.
      Good luck with the search.

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