Double bed

A double bed costs almost twice as much as a regular bed, and provides the same rest. They are a good alternative if you have married colonists or lovers, who will get a mood penalty if not sleeping together.

Acquisition

Double beds can be constructed once the Complex furniture research project has been completed. They require 85 Stuff (Wood/Metals/Stone) and 1,500 ticks (25 secs) of work.

Summary

Rest Effectiveness

Rest Effectiveness is a measure how fast a pawn will regain rest. A pawn sleeping in a bed with 125% rest effectiveness would regain rest 25% faster, and thus require 80% of the time to sleep.

Rest effectiveness varies by quality and material. With the notable exception of jade, stone materials only offer 90% of the rest effectiveness of a bed made from non-stone materials at the same quality level. Jade can safely be used to make beds with extremely high beauty and value.

Material	Awful	Poor	Normal	Good	Excellent	Masterwork	Legendary
Non-Stone and Jade	86% (12.21 hr)	92% (11.41 hr)	100% (10.5 hr)	108% (9.72 hr)	114% (9.21 hr)	125% (8.4 hr)	160% (6.56 hr)
Stone except Jade	77% (13.57 hr)	83% (12.68 hr)	90% (11.67 hr)	97% (10.8 hr)	103% (10.23 hr)	113% (9.33 hr)	144% (7.29 hr)

^{Bracketed times are time to refill rest to 100% from 0% at the given rest effectiveness.}

Comfort

Comfort is a measure of how fast a pawn will refill their comfort meter. A pawn sleeping in a bed with a higher comfort value will regain comfort proportionally faster. Comfort varies by quality but not material. Beds of the same quality level will all have the same comfort, regardless of what they're constructed from. An adjacent end table and a nearby dresser will each increase the base comfort by a further +0.05. This increase is applied before the quality multiplier.

Quality	Awful	Poor	Normal	Good	Excellent	Masterwork	Legendary
Comfort	0.57	0.66	0.75	0.84	0.93	1.09	1.28
+ End Table & Dresser	0.65	0.75	0.85	0.95	1.05	1.23	1.45

Surgery Success Chance Factor

The Surgery Success Chance Factor is exactly what it sounds like - a multiplier on the chance for a successful surgery assuming it is performed in this bed. The base value depends on the bed type with most beds having a base value of 100%, the sleeping spot a lower value of 70%, and the hospital bed a higher value of 110%. This base value is then modified by the bed's quality level. Beds of the same type and quality level will all have the same factor, regardless of what they're constructed from.

Quality	Awful	Poor	Normal	Good	Excellent	Masterwork	Legendary
Surgery Success Chance Factor	90	95	100	105	110	115	130

Analysis

For a more complete discussion of "beds", see Bed#Analysis.

Double beds are just a bed that two can share; all stats and in-game effects are otherwise the same. They are ~.94 times as much work as making two standard "single" beds, and require ~.94 as much material, so a small savings on both over two beds.

Colonists do not have to be lovers to share a bed, although only a formal couple will get the mood buff for doing so. You can assign any two colonists (or prisoners) to share a bed, and the mood penalty (if any) is determined by their opinion of each other:

-5 mood at 0 opinion
changes by +/-1 for every +/-20 opinion.

See also double sleeping spot, double bedroll, and royal bed (which is always "double size")

Material table

Material	Stuff cost	Beauty	Work to Build	HP	Flammability	Market Value
Wooden Double bed	85	2	001,050 ticks (17.5 secs)	130	100%	106
Granite Double bed	85	2	009,140 ticks (2.54 mins)	340	0%	109
Limestone Double bed	85	2	009,140 ticks (2.54 mins)	310	0%	109
Marble Double bed	85	4	008,390 ticks (2.33 mins)	240	0%	106
Sandstone Double bed	85	2	007,640 ticks (2.12 mins)	280	0%	104
Slate Double bed	85	2	009,140 ticks (2.54 mins)	260	0%	109
Jade Double bed	85	15	007,500 ticks (2.08 mins)	100	0%	450
Golden Double bed	850	28	001,350 ticks (22.5 secs)	120	40%	8505
Plasteel Double bed	85	2	003,300 ticks (55 secs)	560	0%	775
Silver Double bed	850	10	001,500 ticks (25 secs)	140	40%	855
Steel Double bed	85	2	001,500 ticks (25 secs)	200	40%	167
Uranium Double bed	85	1	002,850 ticks (47.5 secs)	500	0%	520