Preserve the pending wall-integrated bed decision with the presentation revision

decisions/2026-09-11-bed-wall-integrated.md

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+# Wall-integrated bed
+
+Marcus asked that the bedroom bed be built into the wall rather than stand as
+free furniture, so that it stays rigid and quiet in use instead of rocking,
+creeping across the floor or knocking against the lining.
+
+Requirement for the Blender bedroom and for eventual builder documentation:
+
+- Bed platform fixed to the bedroom wall framing, not a free-standing frame on legs.
+- Load carried into the wall structure and the floor, so the bed cannot slide or rack.
+- Head end hard against the wall, with no separate headboard able to knock the lining.
+- Detailed for quiet: isolate the mattress platform from the wall sheeting and avoid
+  metal-on-metal fixings that develop a creak.
+- Keep under-bed and bedside access for the Eight Sleep hub cabling and for cleaning.
+- Retain the existing sleep setup: Eight Sleep Pod cover, ventilated bedside hub,
+  indoor/outdoor air conditioning, lined blackout curtains, timber and linen finishes.
+
+Not yet modelled. The bedroom scene still shows a free-standing bed; fold this
+into the next bedroom revision along with the chapter 08 camera framing.
+
+Concept-stage note: the wall framing, fixings and load path for a cantilevered or
+wall-hung platform have not been engineered. A builder or engineer has to confirm
+the wall can take it before this is treated as buildable.