Can i lay sandstone directly on sharp sand?

[Jakes Daddy]

I'm currently doing a small/medium patio (8x3m). If I'm honest its less planned that it is evolving which is probably not a great statement, but it is honest !
I have purchased Stoneflair Purestone Sandstone natural stone slabs.
I have fixed edges round all 4 edges - 1 edge is the house, the 3 other edges I have already laid blocks in concrete with haunched edges.
Within the patio area I have already dug out, laid some type 1 and plate compacted.
I'm currently laying a course of sharp sand which I plan to compact by hand (tamp down) and screed to a depth of about 17mm (slabs are apparently calibrated at 22m thick)
From what I've read on this site, it sounds like I can get away with simply laying the slabs straight down on the sand - but the Stoneflair site recommends that they are laid on a full mortar bed

What should I do?

Cheers

JD

[GB_Groundworks]

lay them on a full mortar bed

[lutonlagerlout]

full mortar bed,especially for thin sandstone
LLL

[Tony McC]

Unbound (sand) bedding is only really suitable for professionally-laid concrete paving. DIYers will find it much easier to work with a full mortar bed.